To directly answer the original question: a TikTok linked account through Family Pairing lets you manage settings and see time spent on the app. It does not let you see videos watched, messages sent, search history, or any other content activity. This is a platform design choice, not a bug, and it applies to all linked accounts regardless of how they are configured.
If time management and basic restrictions are all you need, Family Pairing combined with Google Family Link or Apple Screen Time covers it. This is free, takes about 20 minutes to set up, and requires no third party tools.
If you need content visibility, you have to go beyond TikTok’s own tools. The options in order of complexity are manual phone checks (free, requires physical access and cooperation), network DNS monitoring through NextDNS or similar (free or low cost, catches browser workarounds), alert based monitoring through Bark (paid, sends notifications on concerning content), and full device monitoring through tools like Xnspy or Eyezy (paid, captures screen activity and provides the most detailed view).
The key technical limitations to remember are that Family Pairing links to one account so alt accounts bypass it, the TikTok mobile website bypasses all in-app restrictions, TikTok traffic is encrypted so network monitoring shows patterns but not content, and TikTok Watch History only goes back 7 days and requires the physical device.
This thread covered the full technical landscape of what is possible. Match the level of monitoring to your specific situation and build up from the free tools before investing in paid solutions. Good luck @CircuitFlow 